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Splitblank #86

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@mhpx
mhpx commented Jan 13, 2012

Added feature to specify a separate location for the blankspace partition file in the control/etc/workspace-control/images.conf
"blankspacedir"
left the default value in conf to be secureimages
Feature requested from user due to disk performance/space issues on cluster where large amounts of blankspace were needed and the local filesystem only had space for the image files, and using a networked filesystem for both blankspace and instance caused poor IO on the network filesystem.

mhpx added some commits Jan 12, 2012
@mhpx mhpx Added new config param to images.conf - blankspacedir
Will to used to specify a separate location for the blankspace partition
e76e91f
@mhpx mhpx Initial work to enable having blankspace partition in a separate loca…
…tion. Untested.

On a cloud setup where large amounts of blankspace are required it
was deemed desireable to have the image directory split from the blankspace file
this would hopefully allow the IO load to be spread out.
4a5463b
@mhpx mhpx Fixed some typos, missing refs, etc.
Blankspace partition now being created in configured location
but fails to do mountcopy tasks
222dac7
@mhpx mhpx Changed back to path from blankspacepath - misunderstanding of how th…
…e lf.path was being used.
b1bc0a6
@mhpx mhpx fixed typo in shutil 9895598
@igable
Nimbus member
igable commented Jan 13, 2012

This will be extremely useful for our CANFAR users and their overtaxed GPFS filesystem. Mike you tested this right?

@mhpx
mhpx commented Jan 13, 2012

Tested both with having the blankspacedir the same as securelocaldir and having it as a different location
Edit* also tested with having a lustreFS as the blankspacedir

@oldpatricka
Nimbus member

This looks good. We probably can't integrate it into 2.9 (We're on the second release candidate, but it should work fine with a 2.9 service.

Maybe one 2.9 comes out, CANFAR can run that, and then later we can look at a point release?

@priteau priteau was assigned Jun 19, 2012
@priteau priteau added a commit that referenced this pull request Jul 2, 2012
@mhpx mhpx Enable having blankspace partition in a separate location
On a cloud setup where large amounts of blankspace are required it was
deemed desireable to have the image directory split from the blankspace
file. This would hopefully allow the IO load to be spread out.

Closes #83 and #86.
b3c469d
@priteau priteau closed this Jul 2, 2012
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